任务型阅读。按要求完成下列各题。

Mr. Li: Good morning, Mr. Wu! How do you go to work?

Mr. Wu: I usually go to work by car. But sometimes I go on foot. I like walking.

Mr. Li: Walking is good. Look at the sun. It'sa fine day for walking today.

Mr. Wu: That's right. And the air is nice and clean. I will go to work on foot today. What about you? Will you go to work on foot today?

Mr. Li: No, I will go to work by bike today. I like riding.